Borrador del Comité
ISO/CD 5314
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
Reference number
ISO/CD 5314
ISO/CD 5314
Edition 2
© ISO 2024
Borrador del Comité
Resumen
The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.
Informaciones generales
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Estado: En desarrolloEtapa: Cierre del periodo de observaciones [30.60]
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Edición: 2
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Comité Técnico :ISO/TC 134
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Ciclo de vida
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Anteriormente
PublicadoISO 5314:1981
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Ahora
